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Finding the Fourth Proportional to 91,101.72, 125,714.22 and 52,862.40

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Solution

The fourth proportional to 91,101.72, 125,714.22 and 52,862.40 is: 72,946.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,101.72 : 125,714.22 = 52,862.40 : x
  2. Step 2: Convert to fraction form
    91,101.72/125,714.22 = 52,862.40/x
  3. Step 3: Cross multiply
    91,101.72x = 125,714.22 × 52,862.40
  4. Step 4: Simplify right side
    91,101.72x = 6,645,555,383.33
  5. Step 5: Solve for x
    x = 6,645,555,383.33/91,101.72
  6. Step 6: Final answer
    x = 72,946.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.